Fido's family tree – in pictures

Fido's family tree – in pictures

A new series on Sky 1 traces the ancestry and evolution of the 500 million domesticated dogs worldwide, with biologist Patrick Aryee introducing some of the 36 wild species. Dogs: An Amazing Animal Family airs on Thursdays from 13 to 27 July.

All photographs: Offspring Films

Mon 10 Jul 2017 06.50 EDT
Last modified on Wed 14 Feb 2018 12.10 EST

The grey fox is the only tree-climbing dog in the Americas – able to scale trunks up to 18m high and jump from branch to branch.